When people describe the brain they often compare it to a computer. In fact, the metaphor of the brain as a computer has defined the field for decades now. And in many ways, it works – the are many respects in which the brain is like a computer. But there are other aspects of the brain which are not captured by the computer metaphor which is why the neuroscientist Daniel Graham is suggesting another paradigm for understanding the brain. In his book An Internet in Your Head: A New Paradigm for How the Brain Works (Columbia UP, 2021), he argues that the brain is a communication system, like the internet.

Owen Bennett-Jones is a freelance journalist and writer. A former BBC correspondent and presenter he has been a resident foreign correspondent in Bucharest, Geneva, Islamabad, Hanoi and Beirut. He is recently wrote a history of the Bhutto dynasty which was published by Yale University Press.